Subtract 21/70 from 36/25
1st number: 1 11/25, 2nd number: 21/70
36/25 - 21/70 is 57/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
36/25 = 36 × 14/25 × 14 = 504/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Subtract the two like fractions:
504/350 - 105/350 = 504 - 105/350 = 399/350 - After reducing the fraction, the answer is 57/50
- In mixed form: 17/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/25-21/70 36/25-42/70 36/50-21/70 36/25-63/70 36/75-21/70